Anthony Giretti • 11/17/2025

C# 14: Introducing Extension Members

This article details the new 'extension members' feature in C# 14, which expands beyond traditional extension methods. It explains how developers can now add instance and static properties and methods to types they don't own, using a new dedicated extension block syntax. The post includes practical examples, such as extending a TemperatureReading class, to demonstrate how this enables richer, more expressive API design.

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#api design #c #Language Features